I'd be pretty pleased with 60s it means you're in the right level. Room for improvement but clear grasp of the concepts.
Let me know when you get to join the 49% club. It happens to all of us on those rides that are just this side of a DQ. Usually pretty memorable. I can remember mine where I got 3 consecutive 2's for bucking and then a 9 directly following for our canter depart. I believe the comment was "shocking recovery" every now and again I go back and look at the test because it was so so funny.
In some sense we show for the scores, but eventually in order to kill show nerves you have to walk in to the ring with the thought "I am here to ride whatever horse that appears underneath me irregardless of how the warmup went" and maybe constantly whispering to yourself as you blow another simple "I don't care. I don't care. I don't care.". I love to show
I really miss it, but I don't much remember the scores, I remembe galloping out the horse the night before, I remember going into the warmup with a good friend, I remember camping at the showgrounds wrapped in a horse blanket, I remember thunderstorm braiding with Rocket, I remember my trainers grin when we got the insane 17hh TB into the ring for the first time (that was quite the triumph) even if we got DQ'ed two minutes later. The experience is the culmination of a winter of conditioning and shoeing and diet and grooming- and sink or swim it's fun.
Is your mare still colicking everyday? Hopefully she is doing a lot better to be out showing, since it is a super stressful environment. I've had horses that were not prone to colicking have a minor case in a new stall at a new place. And it has to be monitored pretty closely, especially a high strung TB.
"Stay ON the horse IN the arena" -my trainer.